沉积物中甲基汞提取分析方法研究  

Research of Extraction of Methylmercury in Sediments Analyzation Method

作　　者：杨雪[1] 彭英[1] 陈素兰[1] YANG Xue;PENG Ying;CHEN Sulan(Jiangsu Environmental Monitoring Center,Nanjing,Jiangsu Province,210000 China)

机构地区：[1]江苏省环境监测中心,江苏南京210000

出　　处：《科技资讯》2020年第31期66-68,共3页Science & Technology Information

基　　金：国家环境保护标准制修订项目《土壤和沉积物甲基汞和乙基汞的测定吹扫捕集/气相色谱-冷原子荧光光谱法》(项目编号:2016-6)。

摘　　要：该方法建立了全自动烷基汞分析仪测定沉积物中的甲基汞的前处理方法。实验中比较了两种甲基汞的提取方式的提取效果,并且对不同提取时间下恒温振荡器的回收率进行了实验分析。结果表明,在70℃时,选用恒温振荡器提取1 h即可实现沉积物中甲基汞的提取分析。该提取方法的研究为更好地了解沉积物中甲基汞污染水平提供了技术支撑。A pretreatment method for the determination of Methyl mercury in sediments by Automated Alkyl Mercury Analytical System was established.In the experiment,the extraction effect of two extraction methods of Methyl mercury was compared,and the recovery of thermostatic oscillator under different extraction time was analyzed.The results show that the extraction of methyl mercury in sediments can be realized at 70℃by using a thermostatic oscillator for 1h.The study of this extraction method provides technical support for better understanding the level of methylmercury pollution in sediments.

关 键 词：甲基汞 沉积物 提取方法 污染 

分 类 号：R114[医药卫生—卫生毒理学]